Experimental Validation of AUX Scheme for Quantum Homomorphic Encryption on IBM Quantum Platforms

Document Type

Conference Proceeding

Source of Publication

Proceedings 2026 International Conference on Quantum Communications Networking and Computing Qcnc 2026

Publication Date

4-6-2026

Abstract

Quantum Homomorphic Encryption (QHE) addresses Quantum Cloud Computing (QCC) security concerns by ensuring the privacy of a client's data and algorithms when outsourced to untrusted third-party quantum servers. However, current QHE schemes face significant challenges: scaling computational resources introduces overhead and hardware noise, degrading accuracy and compromising security. This paper implements and analyses a non-interactive AUX-QHE scheme that employs pre-generated auxiliary states for universal computation. We identify three critical computational bottlenecks: exponential growth in auxiliary state count, complex homomorphic evaluation, and extensive symbolic key updates. Through experimental evaluation on IBM Quantum hardware, we quantify the impact of NISQ noise on AUX-QHE performance and establish practical resource thresholds for deployment. Our results bridge the gap between theoretical QHE frameworks and their practical implementation on noisy quantum devices, providing concrete benchmarks for future noise mitigation efforts.

ISBN

[9798331561109]

Publisher

IEEE

First Page

338

Last Page

342

Disciplines

Computer Sciences

Keywords

Auxiliary (AUX), Noisy Intermediate-scale Quantum (NISQ), Quantum Cloud Computing (QCC), Quantum Error Correction (QEC), Quantum Homomorphic Encryption (QHE)

Scopus ID

105040809629

Indexed in Scopus

yes

Open Access

no

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